public override bool Send(string data = "")
{
if (data == "")
{
return(false);
}
try
{
if (Status)
{
// Begin sending the data to the remote device.
TCPClientStream.WriteString(data);
}
else
{
Console.WriteLine("The TCP link is not connected.");
}
return(true);
}
catch (Exception e)
{
Console.Error.WriteLine("TCP Client Exception on Send: " + e.Message);
Status = false; // setting the status to false
return(false);
}
}
public static byte[] SendTransaction(TCPClientStream stream, byte[] txBytes)
{
try
{
byte[] rxBuffer = Receive(stream); //wait for ENQ
if (rxBuffer[0] != 0x05)
{
throw new TCPIPManagerException("Could not send Transaction: ENQ char not received");
}
Transmit(stream, txBytes);
byte[] received = Receive(stream);
SendACK(stream);
return(received);
}
catch (Exception ex)
{
try
{
SendNACK(stream);
}
catch { }
throw ex;
}
}
public void Init(ICardInterfaceManger contactCardInterfaceManger, string contactDeviceId,
ICardInterfaceManger contactlessCardInterfaceManger, string contactlessDeviceId,
QRCodeMode qrCodeMode, string accountNumberInUse,
IConfigurationProvider configProvider, IOnlineApprover onlineContactEMVApprover,
TCPClientStream tcpClientStream, TransactionRequest tr = null)
{
qrCodeScanned = false;
this.contactDeviceId = contactDeviceId;
this.contactlessDeviceId = contactlessDeviceId;
this.qrCodeMode = qrCodeMode;
this.contactCardInterfaceManger = contactCardInterfaceManger;
this.contactlessCardInterfaceManger = contactlessCardInterfaceManger;
this.configProvider = configProvider;
this.onlineContactEMVApprover = onlineContactEMVApprover;
this.tcpClientStream = tcpClientStream;
this.accountNumberInUse = accountNumberInUse;
if (tr != null)
{
this.tr = tr;
totalAmount.Total = Convert.ToString(tr.GetAmountAuthorized_9F02());
Start();
}
else
{
UpdateView(ViewState.Step1TransactDetails);
}
}
public static byte[] SendTransaction(TCPClientStream stream, byte[] txBytes)
{
try
{
Transmit(stream, txBytes);
return(Receive(stream));
}
catch (Exception ex)
{
throw ex;
}
}
private static void Transmit(TCPClientStream stream, byte[] txBytes)
{
short length = (short)(txBytes.Length);
byte[] lengthBytes = new byte[] { (byte)(length / 256), (byte)(length % 256) };
byte[] txBytesTCP = Formatting.ConcatArrays(lengthBytes, txBytes);
Logger.Log("Sending: [" + Formatting.ConvertToInt16(lengthBytes) + "]" +
"[" + Formatting.ByteArrayToHexString(txBytes) + "]");
stream.Write(txBytesTCP);
}
private static byte[] Receive(TCPClientStream stream)
{
byte chrSTX = 0x02; // Start of Text
byte chrETX = 0x03; // End of Text
byte[] rxBuffer = new Byte[4096];
int countBytesRead = stream.Read(rxBuffer);
byte[] lengthBytesReceived = new byte[2];
Array.Copy(rxBuffer, 0, lengthBytesReceived, 0, lengthBytesReceived.Length);
int bytesInRxPacket = Formatting.ConvertToInt16(lengthBytesReceived);
if (bytesInRxPacket + 2 != countBytesRead)
{
throw new TCPIPManagerException("Did not receive all expected bytes");
}
byte[] result = new byte[bytesInRxPacket];
Array.Copy(rxBuffer, 2, result, 0, result.Length);
bool hasSTX = false;
bool hasETX = false;
if (result.First() == chrSTX)
{
byte[] strippedSTX = new byte[result.Length - 1];
Array.Copy(result, 1, strippedSTX, 0, strippedSTX.Length);
result = strippedSTX;
hasSTX = true;
}
int lastPos = Array.FindIndex(result, 0, (x) => x == chrETX);
if (lastPos != -1)
{
int lengthToCopy = result.Length - (result.Length - lastPos);
byte[] strippedETX = new byte[lengthToCopy];
Array.Copy(result, 0, strippedETX, 0, strippedETX.Length);
result = strippedETX;
hasETX = true;
}
Logger.Log("Received:[" + countBytesRead + "]" +
(hasSTX == true? "[" + Formatting.ByteArrayToHexString(new byte[] { chrSTX }) + "]": "[No STX]") +
"[" + Formatting.ByteArrayToASCIIString(result) + "]" +
(hasETX == true ? "[" + Formatting.ByteArrayToHexString(new byte[] { chrETX }) + "]": "[No ETX]"));
return(result);
}
public EMVMain(ICardInterfaceManger cardInterfaceManger, IOnlineApprover onlineApprover, IConfigurationProvider configProvider, TCPClientStream tcpClientStream)
{
InitializeComponent();
dlgPin.IsVisible = false;
this.cardInterfaceManger = cardInterfaceManger;
this.onlineApprover = onlineApprover;
this.tcpClientStream = tcpClientStream;
this.configProvider = configProvider;
transactionVM = new TransactionVM {
Amount = 1000
};
gridMain.BindingContext = transactionVM;
cmbTransactionType.SelectedItem = transactionVM.TransactionTypes.First();
}
public CardAdminView(ICardInterfaceManger contactCardInterfaceManger, ICardInterfaceManger contactlessCardInterfaceManger, IConfigurationProvider configProvider, IOnlineApprover onlineApprover, TCPClientStream tcpClientStream)
{
InitializeComponent();
this.contactCardInterfaceManger = contactCardInterfaceManger;
this.contactlessCardInterfaceManger = contactlessCardInterfaceManger;
this.configProvider = configProvider;
this.onlineApprover = onlineApprover;
this.tcpClientStream = tcpClientStream;
emvTxCtl.TxCompleted += EmvTxCtl_TxCompleted;
gridProgress.IsVisible = false;
viewCardList.ItemsSource = SessionSingleton.Account.Cards;
UpdateView(CardAdminViewState.CardList);
}
public POSView(ICardInterfaceManger contactCardInterfaceManger, ICardInterfaceManger contactlessCardInterfaceManger, IConfigurationProvider configProvider, IOnlineApprover onlineApprover, TCPClientStream tcpClientStream)
{
InitializeComponent();
this.contactCardInterfaceManger = contactCardInterfaceManger;
this.contactlessCardInterfaceManger = contactlessCardInterfaceManger;
this.configProvider = configProvider;
this.onlineApprover = onlineApprover;
this.tcpClientStream = tcpClientStream;
emvTxCtl.TxCompleted += EmvTxCtl_TxCompleted;
UpdateView(POSViewState.POS);
basketItems = new ObservableCollection <POSTransactionLineItem>();
totalAmount = new TotalAmountViewModel();
lblTotal.BindingContext = totalAmount;
try
{
Task.Run(async() =>
{
groups = await CacheProvider.Instance.GetInventoryGroups();
items = await CacheProvider.Instance.GetinventoryItems();
})
.ContinueWith((x) =>
{
UpdataItemNavigator();
Device.BeginInvokeOnMainThread(() =>
{
if (lstBasketItems.ItemsSource == null)
{
lstBasketItems.ItemsSource = basketItems;
}
gridProgress.IsVisible = false;
});
}, TaskContinuationOptions.OnlyOnRanToCompletion);
}
catch (Exception ex)
{
Task.Run(async() =>
{
await App.Current.MainPage.DisplayAlert("Error", ex.Message, "OK");
});
}
}
private static void Transmit(TCPClientStream stream, byte[] txBytes)
{
byte chrSTX = 0x02; // Start of Text
byte chrETX = 0x03; // End of Text
//byte[] LRC;
short length = (short)(txBytes.Length + 2);
byte[] lengthBytes = new byte[] { (byte)(length / 256), (byte)(length % 256) };
byte[] txBytesTCP = Formatting.ConcatArrays(lengthBytes, new byte[] { chrSTX }, txBytes, new byte[] { chrETX });
Logger.Log("Sending: [" + Formatting.ConvertToInt16(lengthBytes) + "]" +
"[" + Formatting.ByteArrayToHexString(new byte[] { chrSTX }) + "]" +
"[" + Formatting.ByteArrayToASCIIString(txBytes) + "]" +
"[" + Formatting.ByteArrayToHexString(new byte[] { chrETX }) + "]");
stream.Write(txBytesTCP);
}
public EMVQRCodeView(ICardInterfaceManger contactCardInterfaceManger,
ICardInterfaceManger contactlessCardInterfaceManger,
IConfigurationProvider configProvider, IOnlineApprover onlineApprover, TCPClientStream tcpClientStream)
{
InitializeComponent();
this.contactCardInterfaceManger = contactCardInterfaceManger;
this.contactlessCardInterfaceManger = contactlessCardInterfaceManger;
this.configProvider = configProvider;
this.onlineApprover = onlineApprover;
this.tcpClientStream = tcpClientStream;
emvTxCtl.TxCompleted += EmvTxCtl_TxCompleted;
emvTxCtl.Init(contactCardInterfaceManger, SessionSingleton.ContactDeviceId,
contactlessCardInterfaceManger, SessionSingleton.ContactlessDeviceId,
QRCodeMode.PresentAndPoll, "5906374433f04eb5b67d25c3e50487dc",
configProvider, onlineApprover, tcpClientStream);
}
public HomeMasterDetailView(ICardInterfaceManger contactCardInterfaceManger, ICardInterfaceManger contactlessCardInterfaceManger, IOnlineApprover onlineApprover, IConfigurationProvider configProvider, TCPClientStream tcpClientStream)
{
InitializeComponent();
this.contactlessCardInterfaceManger = contactlessCardInterfaceManger;
this.contactCardInterfaceManger = contactCardInterfaceManger;
this.onlineApprover = onlineApprover;
this.configProvider = configProvider;
this.tcpClientStream = tcpClientStream;
masterPage.ListViewTransact.ItemSelected += OnItemSelected;
masterPage.ListViewOthers.ItemSelected += OnItemSelected;
//if (Device.RuntimePlatform == Device.UWP)
//{
MasterBehavior = MasterBehavior.Popover;
//}
(masterPage as HomeMasterView).SetWait(false);
}
private static byte[] Receive(TCPClientStream stream)
{
byte[] rxBuffer = new Byte[4096];
int countBytesRead = stream.Read(rxBuffer);
byte[] lengthBytesReceived = new byte[2];
Array.Copy(rxBuffer, 0, lengthBytesReceived, 0, lengthBytesReceived.Length);
int bytesInRxPacket = Formatting.ConvertToInt16(lengthBytesReceived);
if (bytesInRxPacket + 2 != countBytesRead)
{
throw new TCPIPManagerException("Did not receive all expected bytes");
}
byte[] result = new byte[bytesInRxPacket];
Array.Copy(rxBuffer, 2, result, 0, result.Length);
Logger.Log("Received:[" + bytesInRxPacket + "]" +
"[" + Formatting.ByteArrayToHexString(result) + "]");
return(result);
}
public TerminalMain(ICardInterfaceManger cardInterfaceManger, IOnlineApprover onlineApprover, IConfigurationProvider configProvider, TCPClientStream tcpClientStream)
{
InitializeComponent();
Children.Add(new EMVMain(cardInterfaceManger, onlineApprover, configProvider, tcpClientStream));
Children.Add(new DesFireMain(cardInterfaceManger));
}
public EMVTx(ICardInterfaceManger contactCardInterfaceManger,
ICardInterfaceManger contactlessCardInterfaceManger,
IConfigurationProvider configProvider, IOnlineApprover onlineApprover, TCPClientStream tcpClientStream)
{
InitializeComponent();
gridProgress.IsVisible = false;
this.onlineApprover = onlineApprover;
emvTxCtl.Init(contactCardInterfaceManger, SessionSingleton.ContactDeviceId,
contactlessCardInterfaceManger, SessionSingleton.ContactlessDeviceId,
QRCodeMode.ScanAndProcess, "",
configProvider, onlineApprover, tcpClientStream);
emvTxCtl.TxCompleted += EmvTxCtl_TxCompleted;
UpdateView(ViewState.StepTxCtl);
}
private static void SendACK(TCPClientStream stream)
{
byte chrACK = 0x06;
Transmit(stream, new byte[] { chrACK });
}
public TopUpView(ICardInterfaceManger contactCardInterfaceManger, ICardInterfaceManger contactlessCardInterfaceManger, IConfigurationProvider configProvider, IOnlineApprover onlineApprover, TCPClientStream tcpClientStream)
{
InitializeComponent();
this.onlineApprover = onlineApprover;
gridProgress.IsVisible = false;
emvTxCtl.Init(contactCardInterfaceManger, SessionSingleton.ContactDeviceId,
contactlessCardInterfaceManger, SessionSingleton.ContactlessDeviceId,
QRCodeMode.None, SessionSingleton.Account.AccountNumberId,
configProvider, onlineApprover, tcpClientStream);
emvTxCtl.TxCompleted += EmvTxCtl_TxCompleted;
emvTxCtl.SetASkAmountInstruction("Enter the amount below that you wish to top up with.");
emvTxCtl.SetTxStartLabel("Please Tap the Visa or MasterCard card you wish to make the TopUp payment with.");
UpdateView(ViewState.StepTxCtl);
}
public App(ICardInterfaceManger contactCardInterfaceManger, ICardInterfaceManger contactlessCardInterfaceManger, IOnlineApprover onlineApprover, IConfigurationProvider configProvider, TCPClientStream tcpClientStream)
{
InitializeComponent();
MainPage = new HomeMasterDetailView(contactCardInterfaceManger, contactlessCardInterfaceManger, onlineApprover, configProvider, tcpClientStream);
}
public TransactView(FlowType flowType, ICardInterfaceManger contactCardInterfaceManger, ICardInterfaceManger contactlessCardInterfaceManger, IConfigurationProvider configProvider, IOnlineApprover onlineApprover, TCPClientStream tcpClientStream)
{
InitializeComponent();
this.onlineApprover = onlineApprover;
this.flowType = flowType;
QRCodeMode mode = QRCodeMode.None;
switch (flowType)
{
case FlowType.SendMoneyFromCardToApp:
mode = QRCodeMode.PresentAndPoll;
emvTxCtl.SetHeaderInstruction("Send money from their card to your account");
emvTxCtl.SetTxStartLabel("Send money from their card to your account");
this.Title = "Receive Money";
break;
case FlowType.SendMoneyFromAppToCard:
mode = QRCodeMode.ScanAndProcess;
emvTxCtl.SetHeaderInstruction("Send money from your account to their card");
emvTxCtl.SetTxStartLabel("Send money from your account to their card");
this.Title = "Send Money";
break;
}
emvTxCtl.Init(contactCardInterfaceManger, SessionSingleton.ContactDeviceId,
contactlessCardInterfaceManger, SessionSingleton.ContactlessDeviceId,
mode, SessionSingleton.Account.AccountNumberId,
configProvider, onlineApprover, tcpClientStream);
emvTxCtl.TxCompleted += EmvTxCtl_TxCompleted;
gridProgress.IsVisible = false;
UpdateView(ViewState.StepTxCtl);
}
public Win10CardProxy(string ip, int port)
{
tcpClientStream = new TCPClientStreamUWP();
this.ip = ip;
this.port = port;
}
